(a) In order to control sediment pollution of water resources and wetlands, the applicant shall submit an SWP3 in accordance with the requirements of this regulation and the most recent Ohio EPA NPDES General Construction permit. The SWP3 must address erosion and sediment control during construction as well as post-construction water quality practices.
(b) The SWP3 shall be certified by a professional engineer.
(c) The SWP3 shall incorporate measures as recommended by the most current edition of Rainwater and Land Development as published by the Ohio Department of Natural Resources and shall include the following information:
(1) Site description: The SWP3 shall provide:
A. A description of the nature and type of the construction activity (e.g. residential, shopping mall, highway, etc.).
B. Total area of the site and the area of the site that is expected to be disturbed (i.e., grubbing, clearing, excavation, filling or grading, including off-site borrow, fill or spoil areas and off-site utility installation areas).
C. An estimate of the impervious area and percent of imperviousness created by the construction activity.
D. Existing data describing the soil within, or affected by, the development area and, if available, the quality of any known pollutant discharge from the site, such as that which may result from previous contamination caused by prior land uses.
E. A description of prior land uses at the site.
F. An implementation schedule which describes the sequence of major soil- disturbing operations (i.e., grubbing, excavating, grading, utilities and infrastructure installation) and the implementation of erosion and sediment controls to be employed during each operation of the sequence. The plan must clearly describe, for each major construction activity, the appropriate BMPs and the general timing (or sequence) during the construction process of when the measures will be implemented; and/or who (which contractor) will be responsible for implementation (e.g., Contractor A will clear, grub and install perimeter controls and Contractor B will maintain perimeter controls until final stabilization; Contractor C will conduct and document the scheduled inspections).
G. The location and name of the immediate receiving stream or surface water(s) and the first subsequent receiving water and the major river watersheds in which it is located.
H. The aerial (plan view) extent and description of wetlands or other special aquatic sites at or near the site which will be disturbed or which will receive discharges from disturbed areas of the project.
I. Location and description of any storm water discharges associated with dedicated asphalt and dedicated concrete plants associated with the development area and the best management practices to address pollutants in these storm water discharges.
J. The Village Engineer may require the SWP3 to include a Soils Engineering Report based upon the Village Engineer's determination that the conditions of the soils are unknown or unclear to the extent that additional information is required to protect against erosion or other hazards. This report shall be based on adequate and necessary test borings, and shall contain all the information listed below. Recommendations included in the report and approved by the Village Engineer shall be incorporated in the grading plans and/or other specifications for site development listed below. Recommendations included in the report and approved by the Village Engineer shall be incorporated in the grading plans and/or other specifications for site development.
1. Data regarding the nature, distribution, strength and erodibility of existing soils. If applicable, data regarding the nature, distribution, strength and erodibility of the soil to be placed on the site.
2. If applicable, data regarding the nature, distribution, strength and erodibility of the soil to be placed on the site.
3. Conclusions and recommendations for grading procedures.
4. Conclusions and recommended designs for interim soil stabilization devices and measures, and for permanent soil stabilization after construction is completed.
5. Design criteria for corrective measures when necessary.
6. Opinions and recommendations covering the stability of the site.
K. The location of permanent soil erosion control practices to be left in place after construction operations have been completed. (e.g., level spreaders, permanent erosion control matting, gabrons, rock lined channels, etc.)
L. BMPs that divert runoff away from disturbed areas and steep slopes, including rock check dams, pipe slope drains, diversions to direct flow away from exposed soils, and protective grading practices.
M. The location of any existing or planned riparian and/or wetland setback areas on the property.
(2) A vicinity map locating:
A. The larger common plan of development or sale.
B. The development area.
C. All pertinent surrounding natural features within 200 feet of the development site including, but not limited to:
1. Water resources such as wetlands, springs, lakes, ponds, rivers and streams (including intermittent streams with a defined bed and bank).
2. Conservation easements.
3. Other sensitive natural resources.
4. The sensitive areas receiving runoff from the development.
D. All off-site borrow or spoil areas.
E. All off-site utility installation areas that are related to the planned project.
(3) Site plan showing at a minimum, the following information:
A. Limits of earth-disturbing activity at the site, including excavations, filling, grading, clearing and off-site spoil and borrow areas.
B. Soils types should be depicted for all areas of the site, including locations of unstable or highly erodible soils as determined by the most current edition of the soil survey of Summit County by the National Resources Conservation Service (MRCS).
C. Existing and proposed one-foot contours. This must include a delineation of drainage watersheds expected during and after major grading activities as well as the size of each drainage watershed in acres.
D. Surface water locations including springs, wetlands, streams, lakes, water wells, etc., on or within 200 feet of the site, including the boundaries of wetlands or stream channels and first subsequent named receiving water(s) the applicant intends to fill or relocate for which the applicant is seeking approval from the U.S. Army Corps of Engineers and/or Ohio EPA.
E. Existing and planned locations of buildings, roads, parking facilities, and utilities.
F. The location of all erosion and sediment control BMPs, including: the location of areas likely to require temporary stabilization during the course of site development.
G. Sediment ponds, including their basic dimensions, sediment settling volume and contributing drainage area and calculations for size and volume. All sediment basins and traps must maintain a minimum 75% trapping efficiency throughout the construction period as determined by engineering calculations contained within the Summit County Water Quality and Trapping Efficiency Program. The approved program to determine trapping efficiency is available through Summit SWCD.
H. Areas designated for the storage or disposal of solid, sanitary and toxic wastes, including dumpster areas, areas designated for cement truck washout, and vehicle fueling.
I. The location of designated stoned construction entrances where the vehicles will ingress and egress the construction site.
J. The location of any in-stream activities including stream crossings.
(4) Detailed drawings, standards and specifications for the construction site construction plans shall include, at minimum, the following:
A. Methods of controlling the flow of runoff from disturbed areas so as to prevent or minimize erosion.
B. Identification of the structural practices to be used to control erosion and trap sediment from a site remaining disturbed for more than 14 days. A description shall be included of how each selected control will store runoff so as to let sediments settle out and/or divert flows away from exposed soils or act to limit runoff from exposed areas.
C. Identification for each structural practice of its size, detail drawings, maintenance requirements and design calculations.
D. The type and amount of plant seed, live plants, fertilizer, agricultural ground limestone and mulch to be used. Specification of soil testing requirements for fertility and lime requirements will be included. Specification for the use of perennial grass seed will also be included.
E. Settling ponds will be identified with basic dimensions and the calculations for size and volume.
F. Detailed drawings and installation requirements of all other structural control BMPs.
G. Any other soil erosion and sediment control related BMPs and items that are required by the Village Engineer.
H. For developments where the overall plan does not call for centralized sediment control capable of controlling multiple lots, a detail drawing of a project-specific typical individual lot showing standard individual lot soil erosion and sediment control practices and the sequence and timing of BMP installation for the individual lots. This does not remove or eliminate the responsibility to designate and install specific soil erosion and sediment control practices for the storm water discharges.
(5) The Construction Site Conservation Plan shall include a description of the Storm Water Management (SWM) practices to be used on the site. The SWM element of the Plan shall include, at a minimum, the following:
A. A map showing the location, drawn to scale, of permanent SWM conveyance, detention and retention structures, other SWM control structures and the SWM easements.
B. A general description of the SWM strategy proposed to meet this chapter.
C. Design calculations for all permanent SWM conveyance, detention and retention structures and other SWM control structures.
D. Any other SWM-related items required by the Village Engineer.
(Ord. 2007-73. Passed 12-12-07.)